Electrospun poly(vinylidene fluoride-trifluoroethylene) based flexible magnetoelectric nanofibers. (December 2018)

• Record Type: Journal Article
• Authors: Hernández, N.; González-González, V.A.; Dzul-Bautista, I.B.; Ornelas-Soto, N.; Barandiarán, J.M.; Gutierrez, J.
• Is Part Of: European polymer journal. Volume 109(2018)
• Page Start: 336
• Page End: 340
• Publication Date: 2018-12
• Subjects: Multiferroic/magnetoelectric films -- Composite materials piezo-, and ferroelectric -- Materials synthesis and processing micro- and nanofabrication; Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; Polymerization; Polymers; Periodicals; Electronic journals; 547.705
• DOI: 10.1016/j.eurpolymj.2018.09.045
• Languages: English
• ISSNs: 0014-3057

Abstract

Graphical abstract: Abstract: Flexible multiferroic nanofibers of poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) containing 20% w/w of bismuth ferrite doped with neodymium and cobalt (Nd0.05 Bi0.95 Fe0.95 Co0.05 O3 ) nanoparticles were fabricated by electrospinning. SEM micrographs show well aligned nanofibers with average diameter of 420 nm, X-Ray diffraction revealed R3c crystalline structure corresponding to Nd0.05 Bi0.95 Fe0.95 Co0.05 O3 and crystallinity β phase of PVDF-TrFE polymer. FTIR spectra and DSC thermogram were used to investigate the crystallization behavior of PVDF-TrFE and showed pure β phase crystals and high degree of crystallinity. Dielectric measurements determined a low conductivity was found (3 × 10 −6 –1 × 10 −9 S) together with a piezoelectric coefficient of 35 pm/V (−d33 ) and low permittivity (εr = 30–42). Obtained nanofibers displayed a ferromagnetic hysteresis loop, with coercivity of 140 mT and remnant magnetization of 0.580 Am 2 /kg at room temperature. The coexistence of magnetic hysteresis and ferroelectric properties in Nd0.05 Bi0.95 Fe0.95 Co0.05 O3 /PVDF-TrFE nanofibers indicates magnetoelectric performance and hint for potential applications on technological devices.